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1到1001的自然數中,能被7整除的數的個數是:1001/7=1431到1001的自然數中,能被11整除的數的個數是:1001/11=911到1001的自然數中,能被13整除的數的個數是:1001/13=771到1001的自然數中,能被7,11整除的數的個數是:1…
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